Johnny Williams, of East Oakland, takes a break between television news interviews at the Innocence Project offices on Tuesday, March 12, 2013 in Santa Clara, Calif. Williams was recently exonerated for a crime he just finished 14 years serving in prison for. less

Johnny Williams, of East Oakland, takes a break between television news interviews at the Innocence Project offices on Tuesday, March 12, 2013 in Santa Clara, Calif. Williams was recently exonerated for a crime ... more

Photo: Beck Diefenbach, Special To The Chronicle

Johnny Williams, of East Oakland, takes a break between television... Photo-4318697.58325 - SFGate

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Johnny Williams (right), of East Oakland, hugs a member of the media following a television news interview at the Innocence Project offices on Tuesday, March 12, 2013 in Santa Clara, Calif. Williams was recently exonerated for a crime he just finished 14 years serving in prison for. less

Johnny Williams (right), of East Oakland, hugs a member of the media following a television news interview at the Innocence Project offices on Tuesday, March 12, 2013 in Santa Clara, Calif. Williams was ... more

Photo: Beck Diefenbach, Special To The Chronicle

Johnny Williams (right), of East Oakland, hugs a member of the... Photo-4318702.58325 - SFGate

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A letter Johnny Williams, of East Oakland, wrote after he was recently exonerated for a crime he just finished 14 years serving in prison for - Innocence Project offices on Tuesday, March 12, 2013 in Santa Clara, Calif. less

A letter Johnny Williams, of East Oakland, wrote after he was recently exonerated for a crime he just finished 14 years serving in prison for - Innocence Project offices on Tuesday, March 12, 2013 in Santa ... more

Photo: Beck Diefenbach, Special To The Chronicle

A letter Johnny Williams, of East Oakland, wrote after he was... Photo-4318704.58325 - SFGate

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The letter Johnny Williams, of East Oakland, wrote to the Innocence Project asking for help while serving 14 years in prison for a crime he was later exonerated for - Tuesday, March 12, 2013 in Santa Clara, Calif. less

The letter Johnny Williams, of East Oakland, wrote to the Innocence Project asking for help while serving 14 years in prison for a crime he was later exonerated for - Tuesday, March 12, 2013 in Santa Clara, ... more

Photo: Beck Diefenbach, Special To The Chronicle

The letter Johnny Williams, of East Oakland, wrote to the Innocence... Photo-4318705.58325 - SFGate

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Taboola Gallery Frame Item-85307.58325 - SFGate

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The original booking photo of Johnny Williams, of East Oakland, before serving 14 years in prison for a crime he was later exonerated for - Tuesday, March 12, 2013 in Santa Clara, Calif.

The original booking photo of Johnny Williams, of East Oakland, before serving 14 years in prison for a crime he was later exonerated for - Tuesday, March 12, 2013 in Santa Clara, Calif.

Photo: Beck Diefenbach, Special To The Chronicle

The original booking photo of Johnny Williams, of East Oakland,... Photo-4318706.58325 - SFGate